Enlargement of measurement range of simplified BOCDA fiber-optic distributed strain sensing system using a temporal gating scheme

Kazuo Hotate; Hiroshi Arai

doi:10.1117/12.623707

23 May 2005 Enlargement of measurement range of simplified BOCDA fiber-optic distributed strain sensing system using a temporal gating scheme

Kazuo Hotate, Hiroshi Arai

Author Affiliations +

Proceedings Volume 5855, 17th International Conference on Optical Fibre Sensors; (2005) https://doi.org/10.1117/12.623707
Event: 17th International Conference on Optical Fibre Sensors, 2005, Bruges, Belgium

Abstract

We propose a method to enlarge the measurement range for Brillouin Optical Correlation Domain Analysis system simplified with time-division pump-probe generation scheme. In this system, the pump and probe lightwaves, which are modulated in frequency with a sinusoidal waveform to localize the stimulated Brillouin scattering periodically, are additionally gated temporally to select only one localized position. We successfully measured distribution of fiber Brillouin gain spectrum over 250m measurement range with 8cm spatial resolution.

Citation Download Citation

Kazuo Hotate and Hiroshi Arai "Enlargement of measurement range of simplified BOCDA fiber-optic distributed strain sensing system using a temporal gating scheme", Proc. SPIE 5855, 17th International Conference on Optical Fibre Sensors, (23 May 2005); https://doi.org/10.1117/12.623707

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